Section 16.03.10.652 - DEVELOPMENTAL THERAPY: PROCEDURAL REQUIREMENTS FOR INDIVIDUALS WITH AN ISP01.Eligibility Determination. Prior to the delivery of developmental therapy, the person must be determined by the Department or its contractor to be eligible as defined under Section 66-402, Idaho Code, be eighteen (18) years of age or older, and live in the community.02.Intake. Prior to the delivery of developmental therapy: a. A DDA will obtain a participant's current medical, social, and developmental information from the Department or its designee.b. The participant must have an ISP that is authorized in accordance with IDAPA 16.03.10, "Medicaid Enhanced Plan Benefits," Sections 507 through 515. Developmental therapy provided by the DDA must be included on the plan of service and be prior authorized by the Department or its designee before a participant can receive the service from the agency.03.Documentation of Plan Changes. Documentation of changes in the required plan of service or Program Implementation Plan must be included in the participant's record. This documentation must include, at a minimum, the reason for the change, the date the change was made, and the signature of the professional making the change complete with date, credential, and title. If there are changes to a Program Implementation Plan that affect the type or amount of service on the plan of service, an addendum to the plan of service must be completed.Idaho Admin. Code r. 16.03.10.652